A positron annihilation radiation telescope using Laue diffraction in a crystal lens

Details A positron annihilation radiation telescope using Laue diffraction in a crystal lens A positron annihilation radiation telescope using Laue diffraction in a crystal lens

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993stin...9413483s&link_type=abstract

Presented at the International Gamma-Ray Astrophysics Laboratory Integral Workshop, Les Diablerets, Switzerland, 2-5 Feb. 1993

Astronomy and Astrophysics

Astronomy

Crystals, Diffraction, Gamma Ray Telescopes, Gamma Rays, Laue Method, Lenses, Photons, Positron Annihilation, Positrons, Angular Resolution, Gamma Ray Astronomy, Germanium, Gondolas, Quasars, Radiation Detectors

Scientific paper

We present a new type of gamma-ray telescope featuring a Laue diffraction lens, a detector module with a 3-by-3 germanium array, and a balloon gondola stabilized to 5 arc sec pointing accuracy. The instrument's lens is designed to collect 511 keV photons on its 150 sq cm effective area and focus them onto a small detector having only (approx) 14 cu cm of equivalent volume for background noise. As a result, this telescope overcomes the mass-sensitivity impasse of present detectors in which the collection areas are identical to the detection area. The sensitivity of our instrument is anticipated to be 3 (times) 10-5 ph cm-2 S-1 at 511 keV with an angular resolution of 15 arc sec and an energy resolution of 2 keV. These features will allow the resolve of a possible energetically narrow 511 keV positron annihilation line both energy-wise and spatially within a Galactic Center 'microquasar' as 1El740.7-2942 or GRS1758-258. In addition to the galactic 'microquasars', other prime objectives include Cyg X-1, X-ray binaries, pulsars, and AGNS.

Affiliated with

Also associated with

No associations

Rating

A positron annihilation radiation telescope using Laue diffraction in a crystal lens does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A positron annihilation radiation telescope using Laue diffraction in a crystal lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A positron annihilation radiation telescope using Laue diffraction in a crystal lens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1708170